Abstract
The present paper reports the influence of cobalt content on the structural, electrical, magnetic and microwave properties of barium hexaferrite synthesized via chemical co-precipitation method. The samples were characterized for their structural, electrical, magnetic and microwave characterizations using XRD, SEM, TEM, VSM etc. The transmission electron microscopy results showed that stacking of nanoparticles of size ~ 50 nm. In addition, the highest saturation magnetization of 29.82 emu/g was observed for composition x = 0.2. The microwave permittivity and permeability decreases with frequency and it varies with the cobalt concentration. Cobalt concentration strongly affects the microwave and magnetic properties of hexaferrite.
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Acknowledgements
The study was supported by Science and Engineering Research Board (Grant No. SERB/F/2139/2016-17). Dr. Vijaya Puri is grateful to UGC for the award of UGC Research scientist ‘C’. P. B. Kashid acknowledges to UGC for Meritorious fellowship. Ninad Velhal acknowledges to DAE-BRNS for providing the JRF under the project 2012/BRNS/34/36/1034. Also authors thank to DST-FIST, Physics instrumentation facility center (PIFC) Department of Physics, SUK.
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Kashid, P.B., Velhal, N., Kulkarni, G. et al. Influence of Co++ ion concentration on magnetic and microwave properties of Ba(4−X)Co(2+X)Fe36O60 (Ba-M-Y) hexaferrite. J Mater Sci: Mater Electron 29, 1748–1758 (2018). https://doi.org/10.1007/s10854-017-8083-z
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DOI: https://doi.org/10.1007/s10854-017-8083-z